Loading...
New: API Access + Custom Branding now available on Business. Upgrade now →
Loading...
SmallPDF is a great PDF toolkit, but its e-signature feature is bolted on — not built from the ground up. SignBolt is purpose-built for document signing: faster, simpler, and free for up to 3 documents per month.
SmallPDF is a PDF Swiss Army knife with e-signatures as one of 20+ tools. SignBolt is built from the ground up for signing — and it shows.
SmallPDF's signing flow takes ~20 seconds as you navigate through their general-purpose interface. SignBolt gets it done in under 3 seconds.
SmallPDF Pro costs $12/mo for all their PDF tools. If you only need e-signatures, SignBolt Pro at $9/mo gives you more for less.
| Feature | SignBolt | SmallPDF |
|---|---|---|
| Free e-sign plan | 3 docs/mo | 2 docs/day |
| No account to sign (recipients) | ||
| Starting price | $9/mo | $12/mo |
| Purpose-built for signing | ||
| Signing speed | <3 seconds | ~20 seconds |
| Audit trail | ||
| PDF editing suite | ||
| Merge & compress PDFs | ||
| ESIGN Act compliant | ||
| Mobile signing |
SmallPDF offers over 20 PDF tools — merge, compress, convert, edit, and yes, e-sign. But when a tool tries to do everything, the individual features often suffer. SignBolt does one thing exceptionally well: electronic signatures. The interface is cleaner, the workflow is faster, and every feature is designed around the signing experience.
SmallPDF's e-signature flow requires navigating through their general-purpose interface, selecting the right tool, uploading, and then working through their signing steps. It takes around 20 seconds. SignBolt's dedicated interface gets you from upload to signed document in under 3 seconds — because that's all it's designed to do.
SmallPDF Pro costs $12/mo and includes their entire PDF suite. If you need merge, compress, and convert tools, that's great value. But if you only need e-signatures, you're paying for features you'll never use. SignBolt Pro at $9/mo gives you 50 documents of pure signing capability — no bloat, no wasted spend.
We're honest about this: SmallPDF is the better choice if you need a full PDF editing suite. If you regularly merge PDFs, compress files, convert documents between formats, or edit PDF content — SmallPDF's all-in-one approach makes sense. It's a solid tool for teams that work heavily with PDFs beyond just signing. However, if your primary need is getting documents signed quickly and affordably, SignBolt is the purpose-built solution that does it better and cheaper.
Start signing documents for free in under 30 seconds. No credit card, no commitment.
Sign Your First Document Free